Conduction - When Particles Pass Energy Along
Think of conduction like a game of molecular dominoes happening inside solid objects. When you heat one end of a metal rod, the particles there start vibrating faster and bumping into their neighbours, passing energy along like a chain reaction.
Energy transfers to an object's thermal store when you heat it, making those particles move more vigorously. These energetic particles collide with nearby ones, sharing their kinetic energy through countless tiny crashes throughout the material.
This process continues particle by particle until the energy reaches the other side of the object. Eventually, that energy usually ends up heating whatever's touching the object or the surrounding air. Thermal conductivity measures how quickly different materials can transfer energy this way - metals are brilliant at it, whilst materials like wood or plastic are much slower.
Quick Tip: Good conductors like copper feel cold to touch because they quickly conduct heat away from your warm hand!
